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Method driving energetic electrode to release energy and produce shock waves by high-voltage discharge

A technology for releasing energy and high-voltage pulse discharge, which is applied in blasting and other directions, and can solve problems such as hazards, prohibition, and unsafe chemical explosives

Active Publication Date: 2016-06-15
XIAN GUANTONG ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In geological exploration, the explosion source is still the best source, and the signal resolution obtained is the best, but the chemical explosives are not safe, the safety of the detonation method is extremely poor, and the environmental hazards of the explosion products have caused the explosion source to be limited or even banned.
[0008] The cost of reforming oil and gas reservoirs based on the principle of statics is relatively high, and even becomes the biggest obstacle to economic development in the development of shale gas. The effectiveness of a single explosion and deflagration and the damage to the wellbore lead to coexistence. caused great harm

Method used

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  • Method driving energetic electrode to release energy and produce shock waves by high-voltage discharge
  • Method driving energetic electrode to release energy and produce shock waves by high-voltage discharge
  • Method driving energetic electrode to release energy and produce shock waves by high-voltage discharge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a downhole method of driving energetic materials to release energy to generate shock waves by high-voltage pulse discharge plasma is an electrothermal composite electric pulse device used in oil and gas wells. The high-voltage DC power supply 2 is isolated from the coaxial energy storage pulse capacitor 4. The switch 5 and the energetic mixture 7 compounded on the metal wire 6 are integrated into a coaxial whole, the inner conductor is a high-voltage electrode, and the shell is a ground electrode. The downhole cable 2 is connected with the ground power control cabinet 1 and placed in the downhole reservoir.

[0035] The implementation is:

[0036] The staff starts the power control cabinet 1 on the ground, supplies power to the high-voltage DC power supply 3 through the downhole cable 2, and the high-voltage DC power supply 3 charges the energy storage pulse capacitor 4. One end of the isolation control switch 5 is connected with the high vo...

Embodiment 2

[0038] Such as figure 2 As shown, a downhole method of driving energetic materials to release energy to generate shock waves by high-voltage pulse discharge plasma is an environmentally friendly seismic source device based on electrothermal composite electric pulse technology. The device consists of a control cabinet 1, a high-voltage DC power supply 2, and a pulse capacitor 3 , an isolation switch 4, a trigger 5, a high-voltage coaxial cable 6, a metal wire 7 and an energetic mixture 8.

[0039] The implementation method is;

[0040]The control cabinet 1 provides the primary power supply for the high voltage DC power supply 2, and the high voltage DC power supply charges the pulse capacitor. The high-voltage end of the pulse capacitor is connected with the output end of the high-voltage DC power supply and one end of the isolation switch. During charging, the isolation switch 4 disconnects the connection between the pulse capacitor 3 and the output high-voltage coaxial cab...

Embodiment 3

[0042] Comparative Experiment of Shock Wave Energy Between Electric Detonation and Energetic Electrode Generator

[0043] Electric detonation experimental device;

[0044] The electric detonation experimental device consists of the following links (such as image 3 Shown), 1 pool, 2 electric detonation air gap, 3 electric detonation, 4 high voltage connection, 5 high voltage power supply, 6 sensor, 7 sensor shielding line, 8 signal converter, 9 oscilloscope.

[0045] Electric detonation test method;

[0046] The electric detonation 3 is placed in the middle of the water tank 1, and the sensor 6 is placed at the same level as the electric detonation air gap 2 and at a certain distance from the electric detonation air gap 2. The electric detonation 3 is connected to the On the high-voltage power supply 5, when the high-voltage power supply 5 supplies power to the electric detonation 3, the electric detonation air gap 2 generates a shock wave, and the sensor 6 picks up the shoc...

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Abstract

The invention provides a method driving an energetic material to release energy and produce shock waves by high-voltage pulse discharge plasmas underground. A cylinder (an energetic electrode for short), clamped between a high-voltage electrode and a ground electrode of a device and made by a central metal wire and a composite energetic material, is triggered by plasmas produced by high-power pulse discharge to rapidly react. Within 50 microseconds, energy is instantly released, and a large quantity of gas is produced. High-energy shock waves are produced, the high-energy shock waves act on the stratum with oscillation caused by air bubble compression and expansion, and in this way, the purposes of relieving blockage, removing scale, forming cracks, improving seepage conditions, improving permeability and communicating microchannels underground are achieved.

Description

technical field [0001] The invention relates to a method for generating shock waves, in particular to an underground method for generating shock waves by driving energetic materials to release energy through high-voltage pulse discharge plasma. Background technique [0002] Traditionally, there are two ways to generate shock waves in water: chemical energy release and mechanical energy utilization. In the way of chemical explosion and deflagration to generate shock waves, in order to reduce the detonation energy, no matter whether it is a lightning tube or a fire detonator, it is necessary to increase the sensitivity of explosives and gunpowder, but at the same time it increases the danger of explosives and gunpowder, which poses a threat to production safety and society. Stability brings great harm, so all kinds of high-energy explosives and gunpowder are strictly controlled. Various explosives based on polymer organic compounds, gunpowder is also a toxic substance, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/00F42D3/00
CPCF42D1/00F42D3/00
Inventor 吕国民汤国华冯彦飞吕晓琳刘美娟
Owner XIAN GUANTONG ENERGY TECH
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